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Malicious package

rceactjsnpm

Advisory published Updated

rceactjs is a confirmed malicious npm package (MAL-2026-7356) that executes malicious code on install (malicious versions 1.1.2, 1.1.4, 8.7.6). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in rceactjs (npm)

MAL-2026-7356
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall rceactjs

Malicious versions

3 flagged
1.1.21.1.48.7.6

Indicators of compromise (SHA-256)

0a242c793185c6f119a798d29b3cf406fb9d0eb12f7ffc2abeebc77db33f43fc
2327723f45f16a8bfe72ab19be8211ef96e9d292823849e0be5b8a8443178381

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for rceactjs (3 malicious versions).

  2. If you installed it — respond

    Remove rceactjs from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound activity or persistence.

  3. Did it already run?

    If rceactjs was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

Frequently asked questions

No. rceactjs on npm has been identified as a malicious package (versions 1.1.2, 1.1.4, 8.7.6 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-05247RLUA-2026-06405

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks rceactjs-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the malicious outbound activity and severs the channel.

Explore

rceactjs (npm) malicious package — MAL-2026-7356 | O3 Security